Browse Problems 
Our Patreons
Diamond Sponsors
Steven & Felix Halim
Reinardus Pradhitya
Gold Sponsors
--- YOUR NAME HERE ----
Silver Sponsors
--- YOUR NAME HERE ----
Bronze Sponsors
Christianto Handojo
Krzysztof Adamek
Fatima Broom
Contribute
Bitcoin:
1ojudgeapLUjJcnUm
ze67a4w3TJ6WnPxo
Browse Problems
| Title | Total Submissions / Solving % | Total Users / Solving % | ||||
|
200 - Rare Order | 30902 |
36.03%
|
8322 |
79.15%
|
|
|
|
201 - Squares | 20328 |
36.52%
|
4392 |
77.69%
|
|
|
|
202 - Repeating Decimals | 38974 |
29.12%
|
5993 |
75.62%
|
|
|
|
203 - Running Lights Visibility Calculator | 1796 |
4.57%
|
192 |
19.79%
|
|
|
|
204 - Robot Crash | 1158 |
6.91%
|
142 |
28.17%
|
|
|
|
205 - Getting There | 1049 |
7.82%
|
129 |
38.76%
|
|
|
|
206 - Meals on Wheels Routing System | 1063 |
15.99%
|
243 |
51.03%
|
|
|
|
207 - PGA Tour Prize Money | 6514 |
19.19%
|
545 |
67.71%
|
|
|
|
208 - Firetruck | 20451 |
25.42%
|
3336 |
69.48%
|
|
|
|
209 - Triangular Vertices | 3759 |
31.95%
|
987 |
72.85%
|
|
|
|
210 - Concurrency Simulator | 13680 |
26.32%
|
1508 |
73.14%
|
|
|
211 - The Domino Effect | 4041 |
40.96%
|
956 |
75.94%
|
|
|
|
212 - Use of Hospital Facilities | 2331 |
25.65%
|
383 |
60.57%
|
|
|
|
213 - Message Decoding | 17044 |
40.95%
|
3341 |
81.29%
|
|
|
|
214 - Code Generation | 1255 |
25.58%
|
323 |
59.44%
|
|
|
|
215 - Spreadsheet Calculator | 2733 |
32.78%
|
671 |
76.01%
|
|
|
|
216 - Getting in Line | 17836 |
43.98%
|
5214 |
83.35%
|
|
|
|
217 - Radio Direction Finder | 165 |
29.70%
|
73 |
49.32%
|
|
|
|
218 - Moth Eradication | 10076 |
41.58%
|
2057 |
83.37%
|
|
|
|
219 - Department of Redundancy Department | 289 |
22.49%
|
98 |
44.90%
|
|
|
|
220 - Othello | 11151 |
27.82%
|
1817 |
75.34%
|
|
|
|
221 - Urban Elevations | 9312 |
29.52%
|
1408 |
72.44%
|
|
|
|
222 - Budget Travel | 4894 |
34.94%
|
1443 |
76.85%
|
|
|
|
223 - Classifying Lots in a Subdivision | 395 |
16.46%
|
75 |
57.33%
|
|
|
|
224 - Kissin' Cousins | 119 |
23.53%
|
50 |
48.00%
|
|
|
|
225 - Golygons | 6354 |
30.71%
|
655 |
79.39%
|
|
|
|
226 - MIDI Preprocessing | 565 |
37.88%
|
166 |
63.86%
|
|
|
|
227 - Puzzle | 62519 |
20.51%
|
6842 |
68.46%
|
|
|
|
228 - Resource Allocation | 132 |
18.18%
|
44 |
43.18%
|
|
|
|
229 - Scanner | 1150 |
22.17%
|
386 |
36.27%
|
|
|
|
230 - Borrowers | 11914 |
38.11%
|
2646 |
83.07%
|
|
|
|
231 - Testing the CATCHER | 34377 |
28.50%
|
8725 |
71.56%
|
|
|
|
232 - Crossword Answers | 29124 |
30.36%
|
4749 |
78.04%
|
|
|
|
233 - Package Pricing | 761 |
13.14%
|
145 |
46.21%
|
|
|
|
234 - Switching Channels | 1073 |
45.29%
|
396 |
79.29%
|
|
|
|
235 - Typesetting | 369 |
13.28%
|
98 |
30.61%
|
|
|
|
236 - VTAS - Vessel Traffic Advisory Service | 257 |
1.17%
|
77 |
2.60%
|
|
|
|
237 - Monitoring Wheelchair Patients | 386 |
22.28%
|
94 |
63.83%
|
|
|
|
238 - Jill's Bike | 975 |
19.49%
|
245 |
53.88%
|
|
|
|
239 - Tempus et mobilius. Time and motion | 871 |
34.90%
|
321 |
71.34%
|
|
|
|
240 - Variable Radix Huffman Encoding | 1928 |
29.46%
|
372 |
74.73%
|
|
|
|
241 - Sail Race | 179 |
15.08%
|
66 |
22.73%
|
|
|
|
242 - Stamps and Envelope Size | 6459 |
29.56%
|
1185 |
74.51%
|
|
|
|
243 - Theseus and the Minotaur (II) | 945 |
11.11%
|
149 |
41.61%
|
|
|
|
244 - Train Time | 535 |
14.77%
|
129 |
40.31%
|
|
|
|
245 - Uncompress | 9427 |
39.77%
|
2195 |
84.97%
|
|
|
|
246 - 10-20-30 | 5213 |
43.78%
|
972 |
88.07%
|
|
|
|
247 - Calling Circles | 19482 |
45.62%
|
4597 |
90.58%
|
|
|
|
248 - Cutting Corners | 798 |
13.41%
|
115 |
57.39%
|
|
|
|
249 - Bang the Drum Slowly | 289 |
21.45%
|
92 |
42.39%
|
|
|
|
250 - Pattern Matching Prelims | 1506 |
28.15%
|
433 |
64.43%
|
|
|
|
251 - Nondeterministic Trellis Automata | 862 |
12.99%
|
135 |
43.70%
|
|
|
|
252 - Trucking | 117 |
9.40%
|
41 |
24.39%
|
|
|
|
253 - Cube painting | 23205 |
41.39%
|
5348 |
85.96%
|
|
|
|
254 - Towers of Hanoi | 7033 |
19.92%
|
1774 |
50.11%
|
|
|
|
255 - Correct Move | 6823 |
38.24%
|
2147 |
84.07%
|
|
|
|
256 - Quirksome Squares | 22649 |
55.97%
|
10426 |
92.97%
|
|
|
|
257 - Palinwords | 4704 |
28.32%
|
982 |
66.80%
|
|
|
|
258 - Mirror Maze | 2155 |
20.09%
|
383 |
53.52%
|
|
|
|
259 - Software Allocation | 9556 |
46.20%
|
2744 |
90.45%
|
|
|
|
260 - Il Gioco dell'X | 14539 |
48.31%
|
4776 |
91.92%
|
|
|
|
261 - The Window Property | 1624 |
30.36%
|
325 |
77.23%
|
|
|
|
262 - Transferable Voting | 1629 |
6.88%
|
169 |
33.73%
|
|
|
|
263 - Number Chains | 16732 |
37.24%
|
4167 |
80.18%
|
|
|
|
264 - Count on Cantor | 27583 |
49.98%
|
11379 |
90.17%
|
|
|
|
265 - Dining Diplomats | 1240 |
13.47%
|
159 |
59.12%
|
|
|
|
266 - Stamping Out Stamps | 772 |
18.65%
|
115 |
46.09%
|
|
|
|
267 - Of(f) Course! | 1369 |
29.36%
|
184 |
48.91%
|
|
|
|
268 - Double Trouble | 1484 |
35.51%
|
471 |
73.04%
|
|
|
|
269 - Counting Patterns | 992 |
27.12%
|
169 |
73.96%
|
|
|
|
270 - Lining Up | 18557 |
19.30%
|
2735 |
62.08%
|
|
|
|
271 - Simply Syntax | 9764 |
42.37%
|
3394 |
82.91%
|
|
|
|
272 - TEX Quotes | 179122 |
44.73%
|
55915 |
90.05%
|
|
|
|
273 - Jack Straws | 6406 |
22.51%
|
1436 |
63.72%
|
|
|
|
274 - Cat and Mouse | 4611 |
20.41%
|
1028 |
54.67%
|
|
|
|
275 - Expanding Fractions | 11808 |
25.99%
|
2572 |
67.96%
|
|
|
|
276 - Egyptian Multiplication | 2823 |
29.44%
|
773 |
56.92%
|
|
|
|
277 - Cabinets | 1303 |
13.05%
|
370 |
39.19%
|
|
|
|
278 - Chess | 11892 |
57.85%
|
5922 |
94.63%
|
|
|
|
279 - Spin | 211 |
45.02%
|
90 |
53.33%
|
|
|
|
280 - Vertex | 28049 |
36.20%
|
6681 |
86.69%
|
|
|
|
281 - Rubik's Cube | 275 |
24.36%
|
83 |
42.17%
|
|
|
|
282 - Rename | 859 |
25.03%
|
196 |
54.08%
|
|
|
|
283 - Compress | 1618 |
17.37%
|
243 |
45.27%
|
|
|
|
284 - Logic | 402 |
31.34%
|
115 |
60.87%
|
|
|
|
285 - Crosswords | 661 |
30.11%
|
111 |
52.25%
|
|
|
|
286 - Dead Or Not -- That Is The Question | 616 |
30.36%
|
145 |
62.76%
|
|
|
|
287 - Text Comparsion | 181 |
24.86%
|
46 |
23.91%
|
|
|
|
288 - Arithmetic Operations With Large Integers | 1994 |
28.13%
|
382 |
70.94%
|
|
|
|
289 - A Very Nasty Text Formatter | 270 |
33.70%
|
105 |
55.24%
|
|
|
|
290 - Palindroms <---> smordnilaP | 3862 |
31.10%
|
1063 |
75.92%
|
|
|
|
291 - The House Of Santa Claus | 13253 |
63.86%
|
6242 |
94.92%
|
|
|
|
292 - Presentation Error | 825 |
8.61%
|
146 |
32.88%
|
|
|
|
293 - Bits | 681 |
19.09%
|
113 |
46.90%
|
|
|
|
294 - Divisors | 35783 |
50.91%
|
11906 |
89.64%
|
|
|
|
295 - Fatman | 1787 |
26.19%
|
321 |
73.83%
|
|
|
|
296 - Safebreaker | 3604 |
47.17%
|
1228 |
87.62%
|
|
|
|
297 - Quadtrees | 19771 |
47.86%
|
4963 |
92.00%
|
|
|
|
298 - Race Tracks | 2676 |
31.99%
|
570 |
78.77%
|
|
|
|
299 - Train Swapping | 70356 |
57.49%
|
27882 |
94.38%
|
|
| << Start < Prev 1 Next > End >> | ||
| Display # | Results 1 - 100 of 100 | |